Chapter 1 - Introduction

Abstract

This chapter introduces the concept of flat rolling of metals. The products of flat rolling, strips, and thin plates are defined in terms of their geometry: the ratio of their thickness to width is much less than unity. Strips are substantially thinner than plates. Rolling of strips and plates is generally referred to as flat rolling. The objectives of the process are to reduce the thickness of the work piece, increase its length, and thereby change its mechanical and metallurgical attributes. This chapter defines the temperatures at which hot, warm, and cold rolling processes are performed. It describes the equipment—the hot strip mill, Steckel mills, mini mills, Sendzimir mills, planetary mills, and cold rolling mill. It also describes the continuous casting process applied in the hot rolling industry. The chapter elucidates recently developed equipment as well.